Pulley



I (No Model.)-

H. W. BELDSMEIER.

PULLEY.

No. 384,501. Patented June 12 1888.

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UNITED STATES PATENT OFFICE.

HENRY W. BELDSMEIER, OF ST. LOUIS, MISSOURI.

PULLEY.

SPECIFICATION forming part of Letters Patent No. 384,501, dated June 12, 1888. Application filed Nm'ember 21, 1887. Serial No. 255,684. (No motleLi To all whom, it may concern:

Be it known th atI, HENRY W'. BELDsMEIER, of St. Louis, Missouri, have made a new and useful Improvement .in Pulleys, of which the following is a full, clear, and exact description.

The improvement relates to that class of pulleys having a cast-1netal central portion and a wrought metal rim; and it consists in the special construction of the peripheral part of the cast metal portion, substantially as is represented in the annexed drawings, making part of this specification, in which- Figure 1 is a side elevation of the cast-metal portion of the improved pulley. Fig.'2isa cross section on the line 2 2 of Fig. 1, the broken lines indicating the pulley-rim; and Fig. 3 is a view in perspective showing the cast metal portion in full and a part of the pulley-rim in broken lines.

The same letters of reference denote the same parts.

The cast-metal portion A is composed of the usual hub, a, the spokes a, and, in addition to the hub and spokes,the peculiarly-constructed peripheral part a. This last-named part is in effect a circular band extending around the spokes and narrowed at points, respectively, opposite the spokes, and between the spokes being widened, substantially as shown. The part a is also channeled, as shown at a The pulley is completed by the addition of the wrought-metal rim B, Figs. 2, and 3, which is secured to the part a by rivets 12 passing into the wider portions (6 of the part a. By this means a strong light pulley is obtained, for, owing to the part a being wider between the spokes, the pulley is strengthened both laterally and in the direct-ion of its plane, so that it is as strong at such intermediate points as at the points directly in line with the spokes.

The groove or channel a also serves to strengthen the pulley without materially increasing its weight. The wide parts a of the part a also serve for lugs in attaching the rim B, and the rim is attached to better advantage than if the parts a were lugs merely.

I desire not to be restricted to the special mode of widening the peripheral part a to form the lugs, provided they are arranged to come between the lines of the spokes, substan- 

